Combined hospital cot and rolling chair



April 30, 1929.

Filed Nov. 30, 1926 5 Sheets-Sheet April 30, 1929. A. G. HACKNEY COIBINE D HOSPITAL CO1 AND ROLLING CHAIR 3 Sheets-Sheet Filed Nov. 50, 1926 April 30, 1929. A. s. HACKNEY 1,710,320

COMBINED HOSPITAL COT AND RULLING CI'iAIR Filed Nov. 30, 1926 5 Sheets-Sheet 3 Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE.

ARTHUR G. HACKNEY, 0F WINSTON-SALEM, NORTH CAROLINA, ASSIGNOB OF ONE- I-IALIE T0 J. M. HUNT, 0F GREENSBORO, NORTH CAROLINA.

COMBINED HOSPITAL GOT AND ROLLING CHAIR.

Application filed November 30, 1926. Serial No. 151,720.

My invention relates to a combination hospital cot and rolling chair, one of the objects of the invention being to produce a cot on which the patient can be moved conveniently from one place to another, and if able, the patient may sit or recline without the inconvenience of changing from a wheel chair, as the back of my device can be instantly raised or lowered, or can be gradually, slightly and smoothly changed in position.

Another object of my invention is to provide a cot for use in hospitals, and other places capable of having its head portion raised and its toot portion lowered independent of each other.

iiome of the objects of my invention having been given, other objects will appear as the lescription proceeds.

In the drawings, 1 have showed a preferred embodiment of my invention, in which.-

Figure 1 is a side elevation of my device, showing in dotted lines, the manner in which one end may be raised and the other end lowered Figure 2 is a side elevation of my device, showing the parts in such a position that the device may be used as a rolling chair;

Figure 3 is a detailed plan View of the means for raising the head portion of the cot;

Figure -l is a side elevation of my device, showing it folded completely and ready to be stored away;

Figure 5 is an enlarged detailed cross-sew tioual view of a portion of the raster members;

Figiiire (i an enlarged detailed view of a portion of the hacking means for the casters;

Figure 7 is a Cl'OSS-SGCtltJllill view taken along the lines 7-7 in Figure 1, and looking in the direction indicated by the arrows;

Figure 8 is a plan view of my combined hospital cot and rolling chair.

A brief description of the various figures in the drawings having been given, a detailed description of the same will now follow, in which like reference characters indicate corresponding parts throughout the drawings.

The numeral 10 indicates side members of the main base portion of my device, which has the members 12 and 13 joined to the ends of the members 10, and running at right angles, thereto. thus forming a rectangular base portion. Projecting upward from each of the four corners of this rectangular base portion are the lilpright members 14 and 15,-the upper ends of the members 14 and 15 being oined together by the members 16, thus forming the main base frame of my device.

Casters 17 are secured in the housings 18 at the four corners of my main frame. Pivotally secured to the main frame, by means of the bolts 19, are the members 20 and 21. Pivotally secured to the other ends of the members 20 and 21 are the downwardly projecting supports 24 and 25, said downwardly projecting supptirts 24 and 25 having casters 17 secured in housings'lS. Rods 26 and 27 are pivotally secured to the uprights 15 and 24 on one side of the cot, and a similar arrangement occurs on the other side of the cot. A semi-circular member 28 is fixedly secured to the members 20 and 21, said members having slots 29 in their free ends. Pivotally secured to the junction points of members 20, 21, 24 and 25 are the frame members 30 and 31, said members having bolts 32 secured thereto, which are adapted to slide in the slots 29, and to be held in adjusted position in said slots, by means of thum screws 33.

Pivotally secured to the uprights 14 is the rectangular frame member 35, which has piv otally secured in close proximity to its free end, downwardly projecting legs 36, which have frictional members 37, such as soft rubber or other material secured to their lower ends. Rods 38' are pivotally secured to these legs 36 and to the upright members 14. Pivotally secured to the members 38 and 39 are the members 40 and il, whose ends are joined together by the member 42. These members 4011111141 have downwardly and forward pro jccting portious ltl, which are pierced by the bolt 44, and secured to this bolt 44 are the members and 46, which members project inwardly and are secured to a housing 47 which is interior-1y threaded to engage the rod 4,8, whoseunthrcaded end portion slides in the housing 49, the said end portion having the crank wheel 50 secured thereto. Tubes 51 and surrouml the bolt 44 and act as spread ers to keep the members 45 and 46 apart from each other. A tube 53 is secured to thetubes 51 and52 by means of a T 54, said tube 53 projecting slightly into the housing 47 and being adapted to loosely receive the threaded end of the rod 48. A tube 55 projects from the other side of the housing and surrounds the threaded rod 48 for the purpose of protecting the threads on saidrod. Pivotally secured to the members 40 and 41 at the junction point with the member 42 are the members 56 and 57, which project downwardly and forwardly and have a slot 57 in their free ends, said slots having notches 58 in their u )per faces. Secured to the uprights 1.4 are the outwardly projecting bolts equipped, with thumb nuts 59 and 60, said bolts projecting through the slots 57. On the Opposite sides of the uprights 14, from the bolts just described, are the pivoted arms such as 61, which, when operated to the fullline position, shown in Figure 1, prevent the notches 58 from engaging the bolts, on which are mounted the thumb nuts 59 and (30. One or more handle members 62 are secured to the member 112 and one or more handle members 63 are se cured to the rectangular frame 35. Braces, such as are secured to the uprights such as 36., 14. 16, and 2 1, and to the corresponding uprights on the other side of the cot, and to the cross members such as 12 for the purpose of making a rigid framework, which is clearly shown in Figure 7.

When the parts are in the position shown in Figure 2 the push handle 86 will be in proper position for pushing the rolling chair from place to place.

It will be noted by referring to the drawings that all of the members 31, 20, 29, 41, 42, 40, 38, 39, 21, 32 and 31 are of angle iron which serves a double purpose. This arrangement prevents the mattress from slip ping off the device whether it be used as a cot or as a rolling chair, and it also prevents the bed clothing from being torn, as it pre sents a smooth surface for the edges of the bed clothing to rest against.

It will also be noted that I have provided ball bearings 87, between the washers 88 and 90 around the shank 70, which prevents the coiled spring from twisting, and thereby facilitates swivelling.

The members 30 and 31 are joined together at their ends, by the member 31.

Secured to the members 3O.v E21, 38, 40, 12, 41, 39, 2t), 31., and 31 is a mattress supporting member 85, which may be of any conventional material and which is joined to said members along its entire border by coiled springs, such as 66.

In Figure 5, I have shown the manner in which I have mounted the casters. The shank 70, of the casters, projects upwardly into the housing 18 and has a nut 71 secured to its upper end. The upper portion of the shank is smaller than the lower portion and has a coiled spring 72 secured therearound. The lower portion of the shank 70 has a vertical slot 73 therein. Secured to the side of the housing 18 is the smaller housing 74, in which a plunger 75 is mounted. This plunger 7 has a cross pin 76 piercing the same, and the housing 74 has a notch 77 in which the pin 76 is resting, as shown in Figure 5, thus permitting the plunger toengage the slot 73 to prevent turning of the shank 70, but when the plunger is pulled out of the slot, the pin 7 6 will assume the position, as shown in Figure 6, and when given a quarter turn, will hold the plunger out of engagement with the slot 73, against the compression spring 78, and thus allow free movement of the shank 70 with relation to the housing 18.

The method of operating my device is as follows:

ith the parts in the position shown in full lines in Figure l, the patient resting on the cot will be resting in a hmizrmtal position. Vhen it is desired to raise the upper portion of the body of the patient quickly, the handle (32 may be seized and the frame work, composed of the parts +10, all, and a2. raised quickly upward, as she n in the dotted lines in Figure 1, and the notches 58 will engage the bolts sliding in the slots 57, and hold the said parts in elevated position, it being understood that the lever 61 WOi'lltl be in the position, shown in dotted lines in Figure 1. Should it be desired to raise the head of the patient more slowly, the threaded rod 41:8 may be rotated by means of the crank wheel 50, which. will cause the housing 47 to progress toward the crank-wheel 50, and the parts 45 and d6 being in engagement with the portions 43, will cause the frame, composed of the members a0, 11, and 4:2, to be raised upward in the same manner as that which has just been described.

By loosening of the thumb nuts 33, the portion of the cot, composed of the members 30, 31, and 31 may be lowered to any point desired as shown by the dotted lines in Figure 1, or the full lines shown in Figure 2. When the parts are placed in the portions shown in Figure 2, the device may be used as a wheel chair, and when it is desired to store my device, it maybe folded into the position shown in Figure 4;.

The dotted lines A, in Figure 1., show the point to which the head. portion of my device may be raised by the screw member or by hand and held in position by the screw member, or by the notches 58, but when it is desired to raise the head portion to the point, shown in Figure 2, the pivoted arm 80, on the frame portion 35, is hooked over a pin 81 on the member 16. This pivoted arm occurs on both sides of: the cot, and thus the head portion is held in proper position for using the device as a rolling chair.

In the description and drawings, I have set forth a preferred embodiment of my invention, and although specific terms are employed, they are used in a generic and (la scriptive sense only, and not for purposes of limitation only, the use of the invention being set forth in the appended claims.

I claim:

1. In a combinedcot and rolling chair, the combination of a main frame, wheels for supporting the main frame, a pivoted supporting frame secured to one side of the main frame, a pivoted frame secured to the main frame and resting on the pivoted supporting frame, means for raising the pivoted frame independent of the pivoted supporting frame, and means on the pivoted supporting frame for raising the pivoted frame resting thereon.

9'. In a combined cot and rolling chair, the combination of a main frame, wheels for supporting the main frame, a pivoted supporting frame secured to one side of the main frame, a pivoted frame secured to the main frame and resting on the pivoted suppoi-tin frame, means for raising the pivoted frame independent of the pivoted supporting frame, a pivoted wheel frame secured to the other side of the main frame and a second frame pivotally connected to the pivoted wheel frame and adapted to be lowered with relation to the pivoted wheel frame.

In a combined hospital cot and rolling chair, a rigid frame portion, a leg portion pivotally secured to the rigid frame portion, a foot port-ion pivotally secured to the leg portion and being capable of being adjusted in any desired inclined position with relation to the rigid frame, a frame pivoted to the onoosite side of the rigid frame from the leg portion, a second frame pivoted to the rigid frame and being adapted to be supported by the first pivoted frame, means for manually raising the second pivoted frame from the first pivoted frame and securing the same in an inclined osition, and means secured to both pivoted upper pivoted frame while the lower pivoted frame remains in a position parallel to the rigid frame.

at. In a combined cot and rolling chair, a rigid rectangular frame mounted on suitable wheels, a leg section pivotally secured to the rigid frame, a foot section pivotally secured to the leg section, means for adjusting the foot section at any desired angle with relation to the rigid frame, a rectangular frame pivotally secured to the opposite side of the rigid frame from the leg section, a second rectangular frame pivoted to the rigid frame and being adapted to be supported by the first named pivoted frame, a housing in the lower pivoted frame, a rod slidably mounted in the said housing, the inner end of the rod being threadabl engaged in a second housing secured to t e upper pivoted frame, said rod and housings being adapted to be operated to raise the upper frame with relation to the lower frame, and means for raising the upper frame and adjusting the same in raised position without raising the lower pivoted frame.

In testimony whereof I aflix my signature.

ARTHUR G. HACKNEY.

frames for raising the 

